Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If you need an accessible version of this item please contact JSTOR User Support

Insect Pollination in Tropical Rain Forest Grasses

Thomas R. Soderstrom and Cleofé E. Calderón
Biotropica
Vol. 3, No. 1 (Jun., 1971), pp. 1-16
DOI: 10.2307/2989701
Stable URL: http://www.jstor.org/stable/2989701
Page Count: 16
  • Get Access
  • Read Online (Free)
  • Cite this Item
If you need an accessible version of this item please contact JSTOR User Support
Insect Pollination in Tropical Rain Forest Grasses
Preview not available

Abstract

Many herbaceous grasses of the bambusoid alliance which are found in the ground layer of vegetation in the tropical American rain forest are visited by numerous insects at time of flowering. Insect collections were made on the inflorescences of two such genera, Olyra and Pariana, at localities in Brazil, Colombia, Panama, and Venezuela. A list of these insects is given with the species of grasses on which they were found. Two species of phorid flies (Phoridae) and two of gall midges (Cecidomyiidae) were observed only on plants of Pariana on which their life cycles may perhaps be spent. Because the grasses under discussion flower in a habitat where wind is negligible and cannot be assumed to play a major role in pollen transfer, the question arises as to whether insects are here the pollinating agents. If so, this result would represent a specialized type of pollination in the grass family which is generally considered to be strictly anemophilous.

Page Thumbnails

  • Thumbnail: Page 
1
    1
  • Thumbnail: Page 
2
    2
  • Thumbnail: Page 
3
    3
  • Thumbnail: Page 
4
    4
  • Thumbnail: Page 
5
    5
  • Thumbnail: Page 
6
    6
  • Thumbnail: Page 
7
    7
  • Thumbnail: Page 
8
    8
  • Thumbnail: Page 
9
    9
  • Thumbnail: Page 
10
    10
  • Thumbnail: Page 
11
    11
  • Thumbnail: Page 
12
    12
  • Thumbnail: Page 
13
    13
  • Thumbnail: Page 
14
    14
  • Thumbnail: Page 
15
    15
  • Thumbnail: Page 
16
    16